32 foot class C with a cracked rubber bushing?????

I have a 32 foot Forest river sunseeker 3170 ds. I had new Michelin tires installed by recall. When they changed the tires I noticed a rubber bushing on the front right side has small cracks in it. The left side looks like new. It is a 2013 the bushing is between the coach and the frame. The ford company says they will replace it under warranty but they have to break a weld from where the coach is welded to the frame. I don't like that idea of breaking a weld and then re-welding it if it is the coach to the frame. Just wondering if anyone has had this done and how important is that bushing with just little cracks????? Any help out there to easy my mind?

Thanks and happy camping!